Fasting on the Mawlid | Shaykh Salih al-Fawzan حفظه الله
Question: O Noble Shaykh, may Allah grant you success. Is it permissible to fast on the day of the Prophet’s birthday?
Answer: No. Fasting is what has been prescribed by Allah and His messenger and it has not been prescribed for us to fast this day. Yes, you can fast Mondays, but not because it is the 12th of the month of Rabee. You can fast each Monday of every week; this is the Sunnah. As for when the 12th of the month of Rabee falls on a Monday and you become happy because it is the Mawlid; then no. This is not permissible.
Rasheed ibn Estes Barbee حفظه الله